A strong low pressure system will impact the Wabash Valley today, bringing in the potential of strong to severe storms during the late afternoon and evening hours. The Storm Prediction Center has placed the entire Valley is under a “slight risk” of severe storms.
This afternoon (through 5 p.m. EDT): Pre-frontal storms will be rather scattered in nature and push through this afternoon. We will then see a break in the rain through 5 p.m. before the main line of storms moves in from the west.
Highest threat of severe weather is approximately 6 p.m. – 11 p.m. EDT: Thunderstorms will be likely along a squall line moving from west to east throughout the evening hours. There is a threat of damaging wind gusts in excess of 60 mph along with brief spin-ups within the line itself.
After 11 p.m. EDT: The main line will exit to east and lingering rain showers and storms will continue into the overnight.
Winds will remain strong gusting as high as 30 mph at times throughout the day and this evening.
Storm Team 10 will bring you the very latest with the changing weather situation both on-air (if warranted) and online throughout the rest of the day.
This map shows what is causing us to have showers and thundershowers. And, with plenty of moisture from the Gulf of Mexico, we can’t rule out the possibility of heavy rain at times. The low pressure you see in Illinois will gradually move up into Indiana, but our chances of rain will continue through at least Wednesday night.
A tricky storm forecast is setting up for Wednesday with multiple storm “complexes” possibly impacting the Wabash Valley.
Round 1:The first is developing to our west today will move southeast into our furtherest west Illinois counties during the very early morning hours on Wednesday. If it holds together, we could see severe storms throughout the Valley.
Timing: 4 a.m. – 8 a.m. EDT
Threat: Damaging wind gusts and heavy rain
Round 2: Depending on where the first complex of storms fizzles out and if the atmosphere recovers, a second complex of storms could redevelop and intensify Wednesday afternoon. The exact timing and positioning is rather uncertain at this time because a lot depends on the first storm system.
Timing: Approx. 2 p.m. – 8 p.m. EDT
Threat: Damaging wind gusts, large hail, heavy rain (1-2″ with isolated spots up to 3″), flash flooding and rotating thunderstorms
Thunderstorms will push out Wednesday evening and quiet conditions return for Thursday and Friday.
Stayed tuned to Storm Team 10 for the very latest on the changing weather situation through tomorrow evening.
Warm and rather humid conditions will continue Tuesday night and Wednesday. A weak cold front will drop south into the region Wednesday afternoon and bring a better chance of more widely spread showers and thunderstorms.
It’s May 18th and we are comfortably enjoying temperatures in the lower to mid 60s. I’m not complaining it feels great outside with the sun pouring down across the Wabash Valley, but this is after two really cold mornings. One breaking a record, that was Saturday the 17th of 39 degrees…and then we tied a morning low today Sunday the 18th at 37 degrees.
Typically we have daytime high temperatures around 76 degrees for this time of the year with overnight lows at 53 degrees. Our weekend wasn’t even close as cold air masked the region. It has been hard bouncing from the 80s to 50s to 30s to 40s over a weeks length, leaving you wondering if it will ever consistently stay warm.
Well we are once again looking at temperatures swinging from the 50s this weekend to the 80s by Tuesday which is a 30 degree increase. For the time of year though it’s rather common and it leaves gardeners and farmers with a headache trying to pick and choose the best time to plant your crop. For now, those cold morning temperatures look behind us, with another topple in the see-saw.
Here is the expected position of a cold front tomorrow afternoon-evening. Ahead of this front, thunderstorms and rain will develop. Behind the front, the air is about 20° colder than it was on Monday. We can expect the cooler air to hang around for a few days, along with the possibility of scattered showers and perhaps a thundershower. The temperature will gradually rise as we head toward the weekend.